3-26
GTH-1256
Part No. 1272856
September 2016
Section 3 • Repair Procedures
HYDRAULIC PUMPS
How to Remove the Boom and
Steering Function Pump
WARNING
Bodily injury hazard. This
procedure requires speci
fi
c
repair skills, lifting equipment
and a suitable workshop.
Attempting this procedure
without these skills and tools
could result in death or serious
injury and signi
fi
cant component
damage. Dealer service is
strongly recommended.
Note: When removing a hose assembly or
fi
tting,
the
fi
tting and/or hose end must be torqued to
speci
fi
cation during installation. Refer to Section 2,
Hydraulic Hose and Fitting Torque Specifi cations
.
Note: Perform this procedure with the engine off
and cool to the touch.
1 Get behind the front right wheel and disconnect
the battery from the machine.
WARNING
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
2 Close the hydraulic tank ball valve.
3 Remove the engine cover to easily reach the
pumps.
4 Tag, disconnect and plug the case drain hose
located at the top of the pump. Cap the
fi
tting
on the pump.
WARNING
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Note: Placing the open end of the case drain hose
below the hydraulic oil level in the hydraulic tank
will result in excessive hydraulic
fl
uid leaking from
the hose. Do not lower the open end of the case
drain hose below the
fl
uid level of the hydraulic
tank until the hose is plugged.
5 Tag, disconnect and plug the hydraulic pump
supply hose at the pump. Cap the
fi
tting on the
pump.
Note: Placing the open end of the case drain hose
below the hydraulic oil level in the hydraulic tank
will result in excessive hydraulic
fl
uid leaking from
the hose. Do not lower the open end of the case
drain hose below the
fl
uid level of the hydraulic
tank until the hose is plugged.
6 Tag, disconnect and plug the high pressure
hose at the pump. Cap the
fi
tting on the pump.
7 Remove the fasteners securing the pump, then
remove the pump from the machine.
WARNING
Crushing hazard. The pump
will fall if not properly supported
when the fasteners are removed
from the machine.
